Finding the Fourth Proportional to 16,939.83, 23,369.30 and 10,223.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,939.83 : 23,369.30 = 10,223.31 : x
2. Step 2: Convert to fraction form
   16,939.83/23,369.30 = 10,223.31/x
3. Step 3: Cross multiply
   16,939.83x = 23,369.30 × 10,223.31
4. Step 4: Simplify right side
   16,939.83x = 238,911,598.38
5. Step 5: Solve for x
   x = 238,911,598.38/16,939.83
6. Step 6: Final answer
   x = 14,103.54